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Finding the Fourth Proportional to 172,492.80, 238,030.08 and 97,036.80

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Solution

The fourth proportional to 172,492.80, 238,030.08 and 97,036.80 is: 133,905.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,492.80 : 238,030.08 = 97,036.80 : x
  2. Step 2: Convert to fraction form
    172,492.80/238,030.08 = 97,036.80/x
  3. Step 3: Cross multiply
    172,492.80x = 238,030.08 × 97,036.80
  4. Step 4: Simplify right side
    172,492.80x = 23,097,677,266.94
  5. Step 5: Solve for x
    x = 23,097,677,266.94/172,492.80
  6. Step 6: Final answer
    x = 133,905.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.